CN108736658A - Electric rotating machine - Google Patents
Electric rotating machine Download PDFInfo
- Publication number
- CN108736658A CN108736658A CN201810074138.4A CN201810074138A CN108736658A CN 108736658 A CN108736658 A CN 108736658A CN 201810074138 A CN201810074138 A CN 201810074138A CN 108736658 A CN108736658 A CN 108736658A
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- Prior art keywords
- flow path
- coil part
- electric rotating
- rotating machine
- path
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/25—Devices for sensing temperature, or actuated thereby
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/197—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
A kind of electric rotating machine, there is concentric rotor and stator inside the shell, stator has multiple coil parts in a circumferential direction, multiple coil parts are provided with first flow path and second flow path in laundry, above-mentioned first flow path and the difference Cooling Water circulation of above-mentioned second flow path, above-mentioned first flow path and the respective one end of above-mentioned second flow path are connect with path inlet, the respective other end is connect with flowing path outlet, first flow path is different with the length of second flow path, in the coil part being arranged along first flow path and the coil part being arranged along second flow path, at the coil part of the higher side of temperature, it is provided with temperature detecting element.Thereby, the temperature of the coil part in high temperature can be detected by easy structure.
Description
Technical field
The present invention relates to a kind of electric rotating machines including temperature detecting element.
Background technology
Vehicle traction with or engine auxiliary the big multi-configuration of electric rotating machine between engine and speed changer.In this way
Electric rotating machine in mostly with the space for installing suitably use thin flat structure.
In addition, in electric rotating machine, if being powered to the coil part for being wound in each stator core, coil part fever.Cause
And it is configured in coil part and carries out cooling mechanism and temperature detecting element to coil part.It can be by using above-mentioned temperature
The detected value of detecting element inhibits torque, chronically to ensure the heat-resisting life of coil.
In the electric rotating machine recorded in patent document 1, it is provided with the coil part of stator in the shell.In the outer of coil part
Side is provided with cooling water channel.In the coil side end (Japanese of a side of coil part：U イ Le エ Application De portion) surface be provided with
Temperature detecting element.There is gap between the coil side end and shell for installing side for temperature detecting element.On the other hand,
It is not installing between the coil side end of temperature detecting element side and shell, the thermal conductivity filled with thermal conductivity ratio air is high
Resin.Thus, thermal resistance until the surface to cooling water channel of the coil side end contacted with temperature detecting element than never with
Thermal resistance until the surface to cooling water channel of the coil side end of temperature detecting element contact is big.Thereby, heat will not be from temperature
Detecting element loss, and the temperature of coil part can be determined by temperature detecting element.
Existing technical literature
Patent document
Patent document 1：Japanese Patent Laid-Open 2013-211941 bulletins
Invention content
The technical problems to be solved by the invention
However, in electric rotating machine recorded in patent document 1, there are following problems：It needs to make resin throughout stator
Coil side end full range in filling, manufacturing cost increase.
The present invention makees to solve above-mentioned technical problem, and its object is to obtain one kind to examine by easy structure
Measure the electric rotating machine of the temperature of the coil part in high temperature.
Technical scheme applied to solve the technical problem
There is the electric rotating machine of the present invention concentric rotor and stator, stator to have in a circumferential direction multiple inside the shell
Coil part is provided with first flow path and second flow path in laundry along multiple coil parts, and first flow path and second flow path supply respectively
Cooling water circulates, and first flow path and the respective one end of second flow path are connect with path inlet, the respective other end and flowing path outlet
The length of connection, first flow path and second flow path is different, is set in the coil part being arranged along first flow path and along second flow path
At in the coil part set, the higher side of temperature coil part, it is provided with temperature detecting element.
Invention effect
Electric rotating machine according to the present invention carries out cooling cooling water in first flow path and second to the coil part of stator
It circulates in road.Since first flow path is different with the length of second flow path, in the coil part and edge being arranged along first flow path
Between the coil part for second flow path setting, the temperature of coil part will produce difference.Can by it is in such coil part,
At the coil part of the higher side of temperature be arranged temperature detecting element, come improve coil part temperature detection reliability.
Thereby, a kind of rotation for the temperature that the coil part in high temperature can be detected by easy structure can be obtained
Motor.
Description of the drawings
Fig. 1 is the axial sectional view of the electric rotating machine of embodiment of the present invention one.
Fig. 2 is the figure of the configuration status for the temperature detecting element for indicating embodiment one.
Fig. 3 is the axial partial sectional view of the electric rotating machine of embodiment two.
Fig. 4 is the axial partial sectional view of the electric rotating machine of embodiment three.
(symbol description)
1 shell；
The inner wall of 1s shells；
2 stators；
3,3a, 3b, 3c, 3d, 3e, 3f coil part；
6 entrance side connectors (path inlet)；
7 outlet side connectors (flowing path outlet)；
8 rotors；
10 constrictions；
11,12,13 electric rotating machine；
51a, 52a, 53a first flow path；
51b, 52b, 53b second flow path；
The outer wall of 51s first flow path and second flow path；
91,92,93 temperature detecting element；
The direction of rotation of R rotors.
Specific implementation mode
Hereinafter, using attached drawing, the embodiment of electric rotating machine of the present invention is illustrated.In addition, using identical symbol
Indicate same or equivalent part, and the repetitive description thereof will be omitted.
Embodiment one
Fig. 1 is the axial sectional view of the electric rotating machine 11 of embodiment of the present invention one.Electric rotating machine 11 is for driving vehicle
?.Central side in columnar shell 1 is provided with columnar rotor 8.In the outside of rotor 8, coaxially set with rotor 8
It is equipped with stator 2.At stator 2, it is along the circumferential direction disposed with the segmentation iron core 4 with coil part 3.In stator 2 and shell 1
Between the peripheral side of multiple coil parts 3 is provided with first flow path 51a and second flow path 51b.First flow path 51a and second flow path
51b is hollow respectively and Cooling Water circulates.In first flow path 51a and the respective one end second flow path 51b, it is provided with work
For the entrance side connector 6 of path inlet.In addition, in first flow path 51a and the respective other ends of second flow path 51b, it is provided with work
For the outlet side connector 7 of flowing path outlet.The outer wall 51s of first flow path 51a and second flow path 51b is continuous face, and this is outer
Wall 51s and the inner wall 1s of shell 1 are separated.
As direction of the arrows shown in fig, cooling water is flowed into from entrance side connector 6.Cooling water is in first flow path 51a from entrance side
Connector 6 advances in the counterclockwise direction, and reaches outlet side connector 7.In addition, cooling water in second flow path 51b from entrance side
Connector 6 advances along clockwise direction, and reaches outlet side connector 7.It circulates in first flow path 51a or second flow path 51b
Cooling water is flowed out from outlet side connector 7.In first flow path 51a, it is located in from entrance side connector 6 to outlet side connector 7, ratio
Center is provided with temperature closer at the coil part 3a at the position of outlet side connector 7 side and the position between coil part 3b
Detecting element 91.
Fig. 2 is the figure for the configuration status for indicating temperature detecting element 91.As shown in Fig. 2, temperature detecting element 91 is inserted into
Between two adjacent coil parts 3a, 3b.Temperature detecting element 91 contacts and is fixed in two coil parts 3a, 3b.Therefore,
Temperature detecting element 91 is detected the mean temperature of coil part 3a, 3b for being contacted.
Using Fig. 1, the effect of the electric rotating machine of embodiment one is illustrated.
The cooling water flowed in first flow path 51a and second flow path 51b leads to coil of the mode to stator 2 of heat transfer
Portion 3 is cooled down.Flow path is divided into two, and when the length difference of two flow paths, flow velocity will produce difference.Wherein, with along
The coil part 3 of the faster flow path side setting of flow velocity is compared, along the coil part 3 of the slower flow path side setting of flow velocity because of cooling
Efficiency is poor, so temperature can be got higher.
In embodiment one, the flow velocity of the sides velocity ratio second flow path 51b of the sides first flow path 51a is slow.Thus, edge
The temperature for the coil part 3 of first flow path 51a settings is higher than the temperature for the coil part 3 being arranged along second flow path 51b.
In addition, cooling water in first flow path 51a or second flow path 51b from entrance side connector 6 towards outlet side connector 7,
Advance while being cooled down to coil part 3.Thus, compared with the temperature close to the cooling water of 6 side of entrance side connector, lean on
The temperature rise of the cooling water of nearly outlet 7 side of side connector.If the temperature of cooling water is higher, cooling efficiency reduces, therefore, position
3 ratio of coil part in the center than flow path closer to outlet 7 side of side connector is less easily cooled.
From the foregoing, it will be observed that in first flow path 51a, it is located in from entrance side connector 6 to outlet side connector 7, more than center
Temperature close to coil part 3a, 3b of outlet 7 side of side connector is got higher.It can be by being arranged at such coil part 3a, 3b
Temperature detecting element 91, to detect the temperature of coil part 3a, 3b in high temperature.
In this way, the electric rotating machine 11 of embodiment one has concentric rotor 8 and stator 2 in shell 1.Stator 2 is in circle
There are multiple coil parts 3 in circumferential direction, multiple coil parts 3 are provided with first flow path 51a and second flow path at stator 2
51b, above-mentioned first flow path 51a and second flow path 51b difference Cooling Water circulations, and above-mentioned first flow path 51a and second
The respective one end road 51b is connect with entrance side connector 6, the respective other end with outlet side connector 7 connect, first flow path 51a with
The length of second flow path 51b is different, in the coil part 3 being arranged along first flow path 51a and along the line of second flow path 51b settings
At in circle portion 3, the higher side of temperature coil part 3a, 3b, it is provided with temperature detecting element 91.
Thereby, a kind of temperature that coil part 3a, 3b in high temperature can be detected by easy structure can be obtained
Electric rotating machine.
The flow velocity of the velocity ratio second flow path 51b of first flow path 51a is slow, and temperature detecting element 91 is set to first flow path
51a, positioned at from entrance side connector 6 to the ratio center in outlet side connector 7 close to outlet side connector 7 side coil part 3a,
At 3b.Thereby, source can be reliably detected in the temperature of coil part 3a, 3b of high temperature.
The outer wall 51s of first flow path 51a and second flow path 51b is separated with the inner wall 1s of shell 1.Thus, in the temperature of shell 1
In the case that degree is got higher, the temperature of first flow path 51a and second flow path 51b will not rise.Along first flow path 51a or second
The temperature of the coil part 3 of road 51b settings will not rise.Thereby, it can steadily detect along first flow path 51a or second
The temperature of the coil part 3 of flow path 51b settings.
Temperature detecting element 91 is arranged between two adjacent coil parts 3a, 3b.Thereby, source can steadily be detected
In the temperature of coil part 3a, 3b of high temperature.
Entrance side connector 6 and outlet 7 separate configuration of side connector.Accordingly, it is not necessary to make as first flow path 51a and second
The piping overlapping coiling (Japanese of road 51b：Weight ね て this い ま わ The), the layout of the piping of vehicle can be made good.
Further, since entrance side connector 6 and outlet 7 separate configuration of side connector, therefore, first flow path 51a and second flow path
The length of 51b is unequal.Thus, Temperature Distribution becomes clear, in this way it is easy to determine is in coil part 3a, 3b of high temperature.
Embodiment two
Then, using Fig. 3, the electric rotating machine of embodiment 2 is illustrated.In embodiment two, due to rotor height
Speed rotation, therefore, temperature detecting element is provided at the coil part different from embodiment one.
Fig. 3 is the axial partial sectional view of the electric rotating machine 12 in embodiment two.It is set along the coil part 3 of stator 2
It is equipped with length different first flow path 52a and second flow path 52b.First flow path 52a and second flow path 52b are provided with entrance side
Connector 6 and outlet side connector 7.Cooling water advances in first flow path 52a from entrance side connector 6 along clockwise direction, and arrives
Up to outlet side connector 7.In addition, cooling water advances in second flow path 52b from entrance side connector 6 in the counterclockwise direction, and arrive
Up to outlet side connector 7.
R rotates rotor 8 in the counterclockwise direction as shown by arrows.In embodiment two, compared with embodiment one, rotor
8 rotary speed is higher.It is in first flow path 52a, positioned at outlet 7 upstream side of side connector coil part 3c and coil part 3d it
Between position at, be provided with temperature detecting element 92.
Since R rotates rotor 8 in the counterclockwise direction, wind is generated in the counterclockwise direction.Due to 8 high speed rotation of rotor,
Therefore, the wind of generation makes hot movement.Outlet side connector 7 near, heat caused by the coil part 3 in second flow path 52b by
To the influence of the wind generated by rotor 8, and it is moved to direction of rotation front side positioned at the downstream of wind, being located at rotor 8
At coil part 3c, 3d of first flow path 52a.Thus, the temperature of coil part 3c, 3d near the outlet side connector 7 of first flow path 52a
The temperature for spending the coil part 3 near the outlet side connector 7 than second flow path 52b is high.It can be by the outlet of first flow path 52a
Temperature detecting element 92 is set at the position between the coil part 3c near side connector 7 and coil part 3d, to detect in height
The temperature of coil part 3c, 3d of temperature.
In this way, in the electric rotating machine 12 of embodiment two, first flow path 52a is along the direction of rotation R phase negative sides with rotor 8
To clockwise direction from entrance side connector 6 towards outlet side connector 7 extend, temperature detecting element 92 is relative to first flow path
The outlet side connector 7 of 52a is arranged at coil part 3c, 3d of 6 side of entrance side connector.
It near outlet side connector 7, is influenced by the wind generated by rotor 8, is located at the direction of rotation front side of rotor 8
Coil part 3 temperature it is higher.That is, compared with the coil part 3 near the outlet side connector 7 of second flow path 52b, first flow path
The temperature of coil part 3 near the outlet side connector 7 of 52a is higher.Thereby, temperature detecting element 92 is capable of detecting when to be in high temperature
Coil part 3c, 3d temperature.
Embodiment three
Then, using Fig. 4, the electric rotating machine of embodiment 3 is illustrated.In embodiment three, in the stream of a side
The midway on road is provided with the constriction to shut off to flowing.
Fig. 4 is the axial partial sectional view of the electric rotating machine 13 in embodiment three.
The coil part 3 of stator 2 is provided with length different first flow path 53a and second flow path 53b.In first flow path
In 53a and second flow path 53b, it is provided with entrance side connector 6 and outlet side connector 7.It is provided with pair in the centre of first flow path 53a
The constriction 10 that flowing in first flow path 53a is shut off.Constriction 10 is arranged to obtain flow equilibrium, passes through
Flow is only limited in the longer second flow path 53b of flow path, to adjust whole flowing.
Cooling water advances in second flow path 53b from entrance side connector 6 along clockwise direction, and reaches outlet side connector
7.On the other hand, cooling water advances in first flow path 53a from entrance side connector 6 in the counterclockwise direction, and reaches outlet side
Connector 7.But the cooling water to be flowed in first flow path 53a is shut off by constriction 10.It is being located most closely to constriction 10
At position between coil part 3e and coil part 3f, it is provided with temperature detecting element 93.
By the way that constriction 10 is arranged, to which in first flow path 53a, the flowing of cooling water is trapped.Thus, constriction 10
The temperature of neighbouring coil part 3 is got higher.The position between the coil part 3e and coil part 3f near constriction 10 can be passed through
Place's setting temperature detecting element 93 is set, to detect the temperature of coil part 3e, 3f in high temperature.
In this way, in the electric rotating machine 13 of embodiment three, it is provided with to first flow path in the centre of first flow path 53a
The constriction 10 that 53a is blocked, temperature detecting element 93 are arranged at coil part 3e, 3f of constriction 10.
By the way that constriction 10 is arranged in first flow path 53a, there is no the flowing of cooling water, therefore, edge in first flow path 53a
The coil part 3 for first flow path 53a settings is not cooled by.Thus, it is possible to by the coil for being located most closely to constriction 10
Temperature detecting element 93 is set at the position between portion 3e and coil part 3f, to detect coil part 3e, 3f in high temperature
Temperature.Furthermore it is possible to by the way that constriction 10 is arranged in first flow path 53a, to make the flowing in second flow path 53b stablize.
Electric rotating machine according to the present invention can be stablized in the temperature of the coil part for the stator that deviation often becomes larger
Ground detects the temperature of the coil part in high temperature.Thus, it is possible to be implemented pair using the detected value of above-mentioned temperature detecting element
The heated protective that torque is inhibited.
Claims (9)
1. a kind of electric rotating machine has concentric rotor and stator inside the shell, which is characterized in that
The stator has multiple coil parts in a circumferential direction,
The multiple coil part is provided with first flow path and second flow path, the first flow path and described in the laundry
Two flow paths distinguish Cooling Water circulation, and the first flow path and the respective one end of the second flow path are connect with path inlet, respectively
From the other end connect with flowing path outlet,
The first flow path is different with the length of the second flow path,
In the coil part being arranged along the first flow path and along in the coil part of second flow path setting, temperature is higher
At the coil part of side, it is provided with temperature detecting element.
2. electric rotating machine as described in claim 1, which is characterized in that
The flow velocity of second flow path described in the velocity ratio of the first flow path is slow,
The temperature detecting element be arranged it is in the first flow path, positioned at from the path inlet to the flowing path outlet
Than center closer at the coil part of the flowing path outlet side.
3. electric rotating machine as described in claim 1, which is characterized in that
The first flow path goes out along the direction opposite with the direction of rotation of the rotor from the path inlet towards the flow path
Mouth extends,
The flowing path outlet that the temperature detecting element is disposed relative to the first flow path is located at the path inlet one
At the coil part of side.
4. electric rotating machine as described in claim 1, which is characterized in that
The constriction blocked to the first flow path is provided in the centre of the first flow path,
The temperature detecting element is arranged at the coil part near the constriction.
5. electric rotating machine as described in claim 1, which is characterized in that
The outer wall of the first flow path and the second flow path and the inner wall of the shell separate.
6. electric rotating machine as claimed in claim 2, which is characterized in that
The outer wall of the first flow path and the second flow path and the inner wall of the shell separate.
7. electric rotating machine as claimed in claim 3, which is characterized in that
The outer wall of the first flow path and the second flow path and the inner wall of the shell separate.
8. electric rotating machine as claimed in claim 4, which is characterized in that
The outer wall of the first flow path and the second flow path and the inner wall of the shell separate.
9. such as electric rotating machine described in any item of the claim 1 to 8, which is characterized in that
The temperature detecting element is arranged between two adjacent coil parts.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017084385A JP6272525B1 (en) | 2017-04-21 | 2017-04-21 | Rotating electric machine |
| JP2017-084385 | 2017-04-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108736658A true CN108736658A (en) | 2018-11-02 |
| CN108736658B CN108736658B (en) | 2020-05-12 |
Family
ID=61074862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810074138.4A Active CN108736658B (en) | 2017-04-21 | 2018-01-25 | Rotating electrical machine |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US10498199B2 (en) |
| JP (1) | JP6272525B1 (en) |
| CN (1) | CN108736658B (en) |
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|---|---|---|---|---|
| FR3109033B1 (en) * | 2020-04-06 | 2022-03-18 | Valeo Equip Electr Moteur | Rotating electric machine stator unit comprising a support with integrated temperature sensor fixing means |
| FR3117706A1 (en) * | 2020-12-10 | 2022-06-17 | Sas Whylot | Electric motor stator comprising an oil coil cooling system. |
| CN112994369A (en) * | 2020-12-31 | 2021-06-18 | 江苏中车电机有限公司 | Method for adjusting end gap of motor coil |
| AT524970A1 (en) * | 2021-04-27 | 2022-11-15 | Andritz Hydro Gmbh | electrical machine |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108736658B (en) | 2020-05-12 |
| JP6272525B1 (en) | 2018-01-31 |
| US20180309348A1 (en) | 2018-10-25 |
| US10498199B2 (en) | 2019-12-03 |
| JP2018183009A (en) | 2018-11-15 |
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